US4949488A - Cassette and an appurtenant apparatus having a screen for cyclical displaying of a plurality of pictures - Google Patents

Cassette and an appurtenant apparatus having a screen for cyclical displaying of a plurality of pictures Download PDF

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Publication number
US4949488A
US4949488A US07/231,587 US23158788A US4949488A US 4949488 A US4949488 A US 4949488A US 23158788 A US23158788 A US 23158788A US 4949488 A US4949488 A US 4949488A
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United States
Prior art keywords
strips
sheets
sheet
picture
display apparatus
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Expired - Fee Related
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US07/231,587
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English (en)
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Jon Holk
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/46—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character is selected from a number of characters arranged one behind the other

Definitions

  • the invention relates to an apparatus having a screen for showing a plurality of pictures, each being composed of picture segments on at least two groups of horizontal strips, the strips in each individual group being made in one continuous sheet and being separated from one another by horizontal cutting lines extending between two marginal portions of the sheet.
  • the various sheets are placed one upon the other, in such a manner that the strips carrying the picture segments are gathered in a number of piles which are equal to the number of strips in each sheet.
  • the number of strips in each pile is equal to the number of picture forming groups, and each single sheet--with the group of strips formed therein--is displaceable in a plane relative to the other sheets, i.e. relative to the other strips in the piles, in such a manner that the picture segments on them become visible and together with picture segments on at least one more displaced group of strips in another sheet, form a continuous picture.
  • cassette as used herein meant to denote an easily replaceable unit comprising a plurality of groups of strips, where the strips in each group form a picture and the strips in the different groups overlap each other in a louverlike manner and are mutually displaceable by simultaneously moving all strips in one and the same group relative to all other groups. In this way edge portions of the strips in the group in question will become visible and together with edge portions of other displaced stirps form a complete picture.
  • each strip is suspended in straps which are moved up and down by guide means which displace picture carrying edge portions of the individual groups of strips into a visible position in order to display a number of pictures sequentially (see Danish Patent Application No. 369/70 or U.S. Pat. No. 3,613,277).
  • This method of suspending and moving the picture carrying strips is rather complicated. It has the effect that the cassette becomes rather thick, and each individual picture must be composed of relatively narrow edge portions on three or more groups of strips. This is because each strip can only be displaced along a fraction of its height, since the strips of the different groups which together form a picture, must overlap each other like louvers, in a position of rest, as well as in a position of display.
  • the cassette according to the invention is characteristic in that the cut lines between the strips in a picture forming group in a first sheet have marginal ends which join openings through the sheet that point away from the cutting line in the same vertical direction. Cut lines between the strips in a second picture forming group for use in obtaining the same picture also have ends which join openings pointing away from the cut line in a direction opposite to the direction of the first mentioned openings.
  • the simultaneously displaceable strips in each group are made by simply punching the cut lines and openings into a sheet, e.g. a sheet showing a complete picture, and the displacement of a group of strips is simply effectuated by displacement of the sheet by means of guide means engaging the marginal portions of the sheets.
  • THe cassette that consists of flat sheets lying one upon the other, has a small thickness compared to the number of different pictures that can be shown, and because the openings in the sheets to be moved point in opposite directions, it has become possible to show for instance 6 different pictures successively.
  • a preferred embodiment of the invention is characteristic in that the strips in those groups that together form a complete picture are arranged in only two sheets, each of which carry a complete picture. Since each picture to be displayed requires only two identical picture sheets with the picture forming segments distributed on the two sheets and spaced from one another by a strip width, a reduced cassette thickness is obtained when compared with known cassettes containing three or more identical picture sheets for each picture to be displayed.
  • the openings at the ends of the cut lines may for instance be isosceles triangles which can be punched out by a simple tool.
  • the cassette according to the invention may simply comprise two sheets having oppositely pointing openings and each carrying its own picture, or possibly it may comprise a picture-less sheet and a single picture carrying sheet. Ordinarily, however, the sheets are made so as to show several, say five or six different pictures successively. According to the invention, this can be effectuated in that the sheets cooperating in pairs and carrying the same picture are arranged each within their own set of sheets, and that the openings in all the sheets in one set point in an opposite direction to the openings in all the sheets in the other set.
  • a preferably picture-less stationary front sheet in front of the sheets with the picture forming strips is obtained, and it has become possible to arrange an advantageous phase between the display of the individual pictures.
  • the sheets with the picture forming strips may in their marginal portions have means, e.g. securing holes or clamps so that they will be correctly arranged in vertically movable guide means in a display apparatus which, according to the invention, has corresponding gripping means to be coupled to the marginal portions of the picture forming sheets.
  • FIG. 1 is a plan view of a first front sheet in an embodiment of the invention
  • FIG. 2 is a partial plan view of a second front sheet of the invention
  • FIG. 3 is a plan view of the two front sheets shown in their relative positions in a display apparatus
  • FIG. 4 is a vertical sectional view of FIG. 3,
  • FIG. 5 is a front view of a part of the invention in which the rearmost of two cooperating picture sheets had been displaced upwardly so that a display zone on each strip has become visible,
  • FIG. 6 is a view similar to FIG. 5 with an area cut away for illustrrating the positions of the individual strips in the apparatus in the condition shown in FIG. 5,
  • FIG. 7 is a plan view in which the foremost picture sheet cooperating with the picture sheet in FIG. 5 has been moved upwards in such manner that the display zones of the strips have become visible and complete the display zones on the picture sheet shown in FIG. 5,
  • FIG. 8 is a view similar to FIG. 7 with an area cut away for illustrating the relative positions of the strips in the situation shwon in FIG. 7,
  • FIG. 9 is a sectional view of the invention, showing the strips of a first stack of sheets, interleaved with the strips from a second stack of sheets, in order to form a display having a picture of display area visible from the right in FIG. 9,
  • FIG. 10 is a view similar to FIG. 9 but in perspective where the second picture carrying sheet in each of the two stacks of sheets has been displaced upwardly by half the width of a strip, in order to display a complete picture, when viewed from the right in FIG. 10,
  • FIG. 11 is a partial schematic representation of the sheets showing the display which results from the movement of the second sheet in the first stack of sheets, and
  • FIG. 12 is a view similar to FIG. 11 showin the display which results when the second sheet of the second stack of sheets is moved.
  • the illustrated embodiment of the invention has a front sheet 1 which by a plurality of cut lines 3 has been divided into picture-less strips 1a forming a group of strips. At each end of the cut lines 3 an upwardly enlarged opening 4 has been punched out, forming an isosceles triangle with an apex extending upwardly from the cut line. As appears from FIGS. 6 and 8 a number of picture carrying sheets, (two sheets in the case shown) have been arranged behind the front sheet. These additional sheets have respective strips 1b and 1c which in their initial position are lying directly behind the strips 1a and thus are not visible in FIG. 1. These sheets are punched out in the same manner as the front sheet 1 in FIG. 1.
  • a second set of sheets is located, the sheets having punched cut lines 3 and triangular openings 5 extending downwards from the corresponding cutting line 3 as shown in FIG. 2.
  • Behind the front sheet 2 is a picture carrying sheet having strips 2b constituting a picture similar to the one formed by the strips 1b in the first picture carrying sheet of the first set of sheets.
  • a rearmost sheet in the second set of sheets is a second picture carrying sheet with strips 2c carrying a picture which is identical with the picture formed by the strips 1c in the rearmost sheet of the first set of sheets.
  • the sets of sheets are placed in a display apparatus (not shown) having holding and guiding means engaging the marginal portions of the sheets and holding the front sheets 1 and 2 aligned in their positions shown in FIGS. 3 and 4, while the strips 1b and 1c, which are not visible in FIG. 3, extend behind the strips 1a to the right thereof.
  • FIG. 4 shows one of the additional sheets with strips 1b, to the right of sheet 1.
  • Strips 2b and 2c extend behind strips 2a, with the strips 2b lying between the strips 1a and 2a in FIG. 4.
  • the holding and guiding means can move the picture carrying sheets with the strips 1b, 1c, 2b, 2c individually in the vertical direction.
  • the guiding means are actuated by a motor and programmed to move in such a manner that after a picture-less screen formed by the strips 1a and 2a, a picture constituted by the strips 1b and 2b follows and then a picture constituted by the strips 1c and 2c, possibly with the picture-less screen reappearing between each picture.
  • a picture-less screen formed by the strips 1a and 2a a picture constituted by the strips 1b and 2b follows and then a picture constituted by the strips 1c and 2c, possibly with the picture-less screen reappearing between each picture.
  • a cassette can also comprise more than two picture carrying sheets having cooperating identical pictures, each of which is divided in a group of strips.
  • the guiding means in the displaying apparatus are advantageously provided with pin-like members adapted to engage corresponding apertures 6 (FIG. 2) in the marginal portions of the sheets in order to ensure correct locating of the sheets in the apparatus.
  • the marginal portions of the sheets could also be provided with clips or projecting lugs cooperating with gripping members on the guiding means.
  • the sheets are moving in the following manner:
  • the strips 2b are moved up beyond the upper edges of the strip 1a in the first front sheet, so that visible display zones with picture portions appear as shown in FIGS. 5 and 6.
  • the first picture carrying sheet in the first set of sheets is pulled upwards in such manner that visible picture segments on the strip 1b will fill in the space between the visible picture portions of the strips 2b, whereby the complete picture will become visible, see FIGS. 7 and 8.
  • the upper half of the strips 2b and the upper half of the strips 1b become visible, or in other words, the pictue on the picture carrying sheet of the first set (behind the first front sheet 1) must be displaced by half the height of a strip which is downwards relative to the picture on the picture carrying sheet with the strips 2b in the second set of sheets (behind the second front sheet).
  • the openings 4, 5, which behind the first set of sheets extend upwards from the cut lines 3 and in the second set of sheets extend downwards from the cut lines 3, may have other shapes than that shown, of an isosceles triangle.
  • the openings in the front stack of sheets might point downwards from the cutting lines and in the rear stack set of sheets might point upwards from the cutting lines, whereby the strips in the rear set of sheets will extend downwardly, and the displacement of the picture carrying sheets will be carried out in a downward direction.
  • the cassette is constructed as shown in the drawing, because shadows from the free horizontal edges of the strips hereby may be avoided.
  • the sheets may be placed in an arbitrary oblique position or lying horizontally or with both sides edges horizontally, but in the same vertical or slanting plane and with the vertical or slanting strips being illuminated from one side.
  • FIGS. 9 and 10 For additional explanation on how the invention operates, reference is now made to FIGS. 9 and 10.
  • strips 1a, 1b and 1c of the front stack of sheets are shown interleaved and half covered by the strips 2a, 2b and 2c of the rear stack of strips.
  • the picture-less strips 1a and 2a are visible so that no picture is displayed.
  • the upper halves of strips 1b and 2b become visibel. These strips cover the respective strips 2a and 1a.
  • the upper halves of strips 1b and 2b produce a complete picture when viewing FIG. 10 from the right.
  • FIG. 11 shows the display which would result if the second sheet 1b of the first stack of sheets is moved. In this position only the upper half of the image would be visible.
  • FIG. 12 shows the situation where the second sheet of 2b of the second stack is moved, displaying the lower half of the image only. It is clear from FIGS. 11 and 12 that when both second sheets 1b and 2b of both the first and second stacks of sheets are moved, a complete image will be displayed.
  • a flat cassette in which the sheets can be moved so as to cylically display a plurality of pictures as the sheets are driven upwardly and downwardly in reciprocating movements by guiding means engaging the marginal portions of the sheets.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Toys (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Automatic Tape Cassette Changers (AREA)
US07/231,587 1982-01-15 1988-08-08 Cassette and an appurtenant apparatus having a screen for cyclical displaying of a plurality of pictures Expired - Fee Related US4949488A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK168/82 1982-01-15
DK16882A DK149100C (da) 1982-01-15 1982-01-15 Kassette og tilhoerende apparat med en skaerm til periodisk visning af et antal billeder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06904766 Continuation 1986-09-05

Publications (1)

Publication Number Publication Date
US4949488A true US4949488A (en) 1990-08-21

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US07/231,587 Expired - Fee Related US4949488A (en) 1982-01-15 1988-08-08 Cassette and an appurtenant apparatus having a screen for cyclical displaying of a plurality of pictures

Country Status (15)

Country Link
US (1) US4949488A (enrdf_load_stackoverflow)
EP (1) EP0098849B1 (enrdf_load_stackoverflow)
JP (1) JPS59500020A (enrdf_load_stackoverflow)
AU (1) AU556554B2 (enrdf_load_stackoverflow)
BE (1) BE897220A (enrdf_load_stackoverflow)
BR (1) BR8304863A (enrdf_load_stackoverflow)
CH (1) CH659715A5 (enrdf_load_stackoverflow)
DE (1) DE3328625T1 (enrdf_load_stackoverflow)
DK (1) DK149100C (enrdf_load_stackoverflow)
GB (1) GB2120828B (enrdf_load_stackoverflow)
MY (1) MY8700246A (enrdf_load_stackoverflow)
NL (1) NL8302371A (enrdf_load_stackoverflow)
NO (1) NO832758L (enrdf_load_stackoverflow)
SE (1) SE442353B (enrdf_load_stackoverflow)
WO (1) WO1983002517A1 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132675A (en) * 1987-11-13 1992-07-21 Dabbaj Rad H Display devices and display elements thereof
US6298535B1 (en) 2000-02-16 2001-10-09 William Ross Lower Wheel lifting rod assembly
US6341411B1 (en) 2000-02-16 2002-01-29 William Ross Lower Wheel lifting rod assembly
US20050157884A1 (en) * 2004-01-16 2005-07-21 Nobuhide Eguchi Audio encoding apparatus and frame region allocation circuit for audio encoding apparatus
GB2431038A (en) * 2005-09-01 2007-04-11 Roy Booth Multiple image display
CN113147229A (zh) * 2021-05-12 2021-07-23 湖南科技大学 一种教学用可切换展示的黑板

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL193392C (nl) * 1988-01-08 1999-08-03 Megaprint Group Ltd Samenstel van twee ten opzichte van elkaar verschuifbare vlakken, in het bijzonder plano voor een schuifkaart.
NL8800051A (nl) * 1988-01-11 1988-04-05 Gerrit Alphenaar En Reindert A Werkwijze voor het vervaardigen van een beeld- en/of tekstwisselschuif, alsmede beeld- en/of tekstwisselschuif, zoals verkregen onder toepassing van deze werkwijze.
GB9404553D0 (en) * 1994-03-09 1994-04-20 Johnson David B Display apparatus
US6161804A (en) * 1999-01-12 2000-12-19 Andrew Corporation Transmission line hanger

Citations (16)

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US383361A (en) * 1888-05-22 Theatrical
US395623A (en) * 1889-01-01 Theatrical
US718305A (en) * 1902-06-24 1903-01-13 Isaac H Blanchard Picture puzzle.
US1573344A (en) * 1923-03-30 1926-02-16 Louis G Jordan Picture device
US1732178A (en) * 1928-09-29 1929-10-15 Beasley Douglas Changeable sign
US1806678A (en) * 1931-05-26 farkas
US2117186A (en) * 1934-12-19 1938-05-10 William E Maclaren Multiimage sign
US2117187A (en) * 1937-04-19 1938-05-10 William E Maclaren Multiimage sign
US2799105A (en) * 1954-05-25 1957-07-16 Tilley William Kemp Inter-changeable picture means
US2833066A (en) * 1954-02-26 1958-05-06 Michael V Morrissey Animated display device
US3080668A (en) * 1959-08-05 1963-03-12 R L Attrezzature E Dispositivi Advertising billboard showing a multiplicity of subjects
US3289334A (en) * 1963-06-06 1966-12-06 Alexander R Forest Disk type calculating and display device
US3430372A (en) * 1966-11-07 1969-03-04 Nat Advertising Co Display device with reversible and replaceable four-message display cartridge
US3430371A (en) * 1966-12-06 1969-03-04 Nat Advertising Co Interleaved multiple sliding panel six-message display device
US3774330A (en) * 1972-02-09 1973-11-27 Vanco Inc Programmed display device or the like
US4164086A (en) * 1974-07-26 1979-08-14 Becerra Lopez Jose L Rectilinear sliding panel display for successively exposing different printed pictures

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DE344954C (enrdf_load_stackoverflow) *
US2141398A (en) * 1937-05-28 1938-12-27 Ernst Gustav Preuss Changeable exhibitor
US3421240A (en) * 1966-03-03 1969-01-14 Michael G Bardi Sign
US3403465A (en) * 1966-04-18 1968-10-01 Keeler And Dunkel Inc Dissolve motion display
JPS4524277Y1 (enrdf_load_stackoverflow) * 1967-08-21 1970-09-24
NO126406L (enrdf_load_stackoverflow) * 1969-01-27
US3659367A (en) * 1970-06-15 1972-05-02 Sumida Shiko Co Feature variable picture and book
CH583807A (de) * 1974-07-31 1977-01-14 Verfahren zum optischen aufhellen von textilmaterialien mit benzofuran-derivaten.

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US395623A (en) * 1889-01-01 Theatrical
US1806678A (en) * 1931-05-26 farkas
US383361A (en) * 1888-05-22 Theatrical
US718305A (en) * 1902-06-24 1903-01-13 Isaac H Blanchard Picture puzzle.
US1573344A (en) * 1923-03-30 1926-02-16 Louis G Jordan Picture device
US1732178A (en) * 1928-09-29 1929-10-15 Beasley Douglas Changeable sign
US2117186A (en) * 1934-12-19 1938-05-10 William E Maclaren Multiimage sign
US2117187A (en) * 1937-04-19 1938-05-10 William E Maclaren Multiimage sign
US2833066A (en) * 1954-02-26 1958-05-06 Michael V Morrissey Animated display device
US2799105A (en) * 1954-05-25 1957-07-16 Tilley William Kemp Inter-changeable picture means
US3080668A (en) * 1959-08-05 1963-03-12 R L Attrezzature E Dispositivi Advertising billboard showing a multiplicity of subjects
US3289334A (en) * 1963-06-06 1966-12-06 Alexander R Forest Disk type calculating and display device
US3430372A (en) * 1966-11-07 1969-03-04 Nat Advertising Co Display device with reversible and replaceable four-message display cartridge
US3430371A (en) * 1966-12-06 1969-03-04 Nat Advertising Co Interleaved multiple sliding panel six-message display device
US3774330A (en) * 1972-02-09 1973-11-27 Vanco Inc Programmed display device or the like
US4164086A (en) * 1974-07-26 1979-08-14 Becerra Lopez Jose L Rectilinear sliding panel display for successively exposing different printed pictures

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132675A (en) * 1987-11-13 1992-07-21 Dabbaj Rad H Display devices and display elements thereof
US6298535B1 (en) 2000-02-16 2001-10-09 William Ross Lower Wheel lifting rod assembly
US6341411B1 (en) 2000-02-16 2002-01-29 William Ross Lower Wheel lifting rod assembly
US20050157884A1 (en) * 2004-01-16 2005-07-21 Nobuhide Eguchi Audio encoding apparatus and frame region allocation circuit for audio encoding apparatus
GB2431038A (en) * 2005-09-01 2007-04-11 Roy Booth Multiple image display
CN113147229A (zh) * 2021-05-12 2021-07-23 湖南科技大学 一种教学用可切换展示的黑板
CN113147229B (zh) * 2021-05-12 2022-09-09 湖南科技大学 一种教学用可切换展示的黑板

Also Published As

Publication number Publication date
GB2120828A (en) 1983-12-07
GB8319268D0 (en) 1983-08-17
DK149100B (da) 1986-01-20
NO832758L (no) 1983-07-29
EP0098849A1 (en) 1984-01-25
DK149100C (da) 1986-06-16
CH659715A5 (de) 1987-02-13
NL8302371A (nl) 1985-02-01
AU556554B2 (en) 1986-11-06
SE8304946L (sv) 1983-09-14
AU1106583A (en) 1983-07-28
BE897220A (fr) 1984-01-05
MY8700246A (en) 1987-12-31
EP0098849B1 (en) 1986-10-08
DK16882A (da) 1983-07-16
SE442353B (sv) 1985-12-16
JPS59500020A (ja) 1984-01-05
WO1983002517A1 (en) 1983-07-21
DE3328625T1 (de) 1984-01-12
BR8304863A (pt) 1983-11-22
JPH0549989B2 (enrdf_load_stackoverflow) 1993-07-27
GB2120828B (en) 1985-10-16
SE8304946D0 (sv) 1983-09-14

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